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Finding the Fourth Proportional to 116,203.20, 160,351.20 and 65,892.48

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Solution

The fourth proportional to 116,203.20, 160,351.20 and 65,892.48 is: 90,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,203.20 : 160,351.20 = 65,892.48 : x
  2. Step 2: Convert to fraction form
    116,203.20/160,351.20 = 65,892.48/x
  3. Step 3: Cross multiply
    116,203.20x = 160,351.20 × 65,892.48
  4. Step 4: Simplify right side
    116,203.20x = 10,565,938,238.98
  5. Step 5: Solve for x
    x = 10,565,938,238.98/116,203.20
  6. Step 6: Final answer
    x = 90,926.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.